There are 2 options to hide the Footer on one page Squarespace
Option 1: Use Squarespace Option
#1. Hover on the page you want to hide the Footer and click on the Gear icon
#2. At Navigation , you disable the option Show Footer
Option 2: Use Custom CSS Code
Use this method for some pages that the above option does not support.
#1. Install Squarespace ID Finder to find the Page ID you want to hide the footer
Page ID is the ID that has the word: collection, like this:
#collection-65afaf111930c159bca47d49
#2. Use this code to the Custom CSS box
#collection-65afaf111930c159bca47d49 footer.sections {
display: none !important;
}